This book exposes the basic concepts of macroeconomic science for non-economists based on a qualitative approach which allows professional and students of other areas to understand the economic phenomena at a national level without losing the academic and conceptual rigurosity. At the end of every chapter the reader will find qualitative and some quantitative exercises to practice the concepts learned. This book is based on the content of 'Economics Course Companion' (Blink and Dorton, 2009) and 'Macroeconomics' (Abel and Bernanke, 2010).